Calculate the mass percent of 0.485 g of H, which reacts with oxygen to form 2.32 g H2O

Mass % of hydrogen = 20.9 %

Explanation:

Given dа ta:

Mass of hydrogen = 0.485 g

Mass of water = 2.32 g

Mass percent of hydrogen = ?

Solution:

Mass % of hydrogen = mass of hydrogen / mass of water * 100

Mass % of hydrogen = 0.485 g / 2.32 g * 100

Mass % of hydrogen = 0.209 * 100

Mass % of hydrogen = 20.9 %